Safety detector device for pin insulators



Nov. 10, 1931.

C. H. SPANGLER SAFETY DETECTOR DEVICE FOR PIN INSULATORS Filed April 19, 192e ad n, L m m 5. H s m nn un P- Milian/M445 Patented Nov. 170, 1931 UNITED STATES CHARLES H. SPANGLER, or `READING, PENNsvtvANIA, Assranoaro iunrnorcrirAN EDIsoN COMPANY, or READING, PENNSYLVANIA, Al Coieroaerroi oF-riiNNsYL- VANIA.

SAFETY DETECTOR DEVICE "Fon rnv INsULArons Application fueaAprn 19,-

My invention relates to safety testing devices for high tension electrical lines, and

testing the pin'insulators supporting said line. It essentially comprises a luminous detector tube mounted on a long standard or handle and provided with a pin-contact and aj controllable gap so that the operator from; a. safe distance may contact said point with on the luminous tube determine the insulators that are properly functioning and-- those that are defective and need replacej. ment. My improved structure is more fully.

described in connection with the accompany-4 f nous detector device 'of thetype indicated .nected to a and more fully set forth in my prior Patent No. 1,701,196 issued February 5, 1929. r The essential elements of said detector, as reference to the aforesaid application will disclose, comprise a as filled tube 5 in an enclosing casing 6 aving wall apertures 7, all mounted in an insulating open-end carrier tube 8 having a reflector 9 adjacent apertures 7, adapted to direct any luminous rays appearing in said apertures rearwardly through the window 10 in the open end of said casing. An inner carrier sleeve 11 is conductively connected with one end of tube 5 through tube support 12 and the opposite end of said tube, projecting into an insulating carrier end closure 13, is conductively conright-angled contact 14 located in a side aperture formed in said closure 13.

In the present constructionI mount the above described detector adjacent one end of a standard or handlev 15, such mounting, as

' shown, comprising spaced apertured insulati'ng plates 16 and 17; each of said plates having a midway .parting and being clamped together by a screw bolt 18 to fixedly engage On the. end of standard 15,'and-secured by screws 20,'20, .passing through plate 16, is an, insulating head 21..-whichrcarries a pin and space the standard 15 held-"7 V-in suitable plate aperturesi f more specifically to an improved device for Y' contact' piece-:22 projectingV frompthey end ithereof and having a right-angled extension 23. projecting laterally'froni said head above f.saidplate16. Y' the insulator and from the electrical'actionYV A'gap, closingrscrew25, engaginga nut sion 23 or 'be moved determinedly therefrom `to'pbrealrthe owcf currentfto saidscrew.

The platexlalsc has lsecured thereinin a `26 as shawn secured ini plate 16, is adapted :when properly turned to'contactwith extensuitable recess, a nutcontacting block 27VIA i with a backing'spriiig, Vas shown, to .conduci.

tively connect said screw; to tube contactlt. Screw 2 5 isconveniently adjusted by the Opera-tor 'graspingatheQ-lower end Vof said standard, through a screw operating extension comprising, as shown, a. non-conducting tube or iod 28 secured at, its upper end to 17 and aI lower bearing in a standard clamp plate 29, and its projecting lower end prof' vided with a lrnurled head 30.

In operation the standard is raised to'in- A seit its contact end 22 above the pin insulator skirt nearest the live wire carried thereby and the lmurled head 30 turned un* screw 25, having a midway bearing in plate inserts thecontact 22 below the aforesaid skirt, the luminous rays being reduced-in the case of a properly effective insulator, andl requiring that the gap be closed by turning head 3G to secure bright luminousrays equal y to those iirst secured.

Then the voperator tries successive .other skirts in succession, each, when in working" order requiring further gap `reduction as` above, indicating` effective insulation asdesired. Should no reduction in the gap be requirechrthen current is leaking past a skirt and the'insulator is partially ortotally de-fV fec'tive de tive skirts.

pending on tlienumber of defecmine the safety or lack of safety of the insulator. As it is used outdoors in all kinds of Weather it is notl affected b Wind howling or noise of passing-traffic, an its long standard and visible ray readily seen at a. secure distance therefrom make it I a L,puftieulaIfly convenient and simple device, Areadily transported and immediately operativennderall conditions and at. asafedistanee from the Jtest-ed line. may be readily modiiied Within the scope of invention as deined in the followingclaim.

l/Vhat I claim is:

A mounting for a safetytester device/jor y,

high-tension-line pin-insulators comprising va carrier standard?having an lnsulatingfen'dsupport for a pin Contact, and spaced insu- Y ,lating supports Jfor axdeteotor .rdevieefadjacent saidendt-supporty-al,Contact pinmounted I in said end-support having i a lateral proj eoftion therefrom and ,a vertical.pin-insulator@ A contacting projection, -a .ray-releoting luminous detector devfice'rmounted 1inV said spaced supports and having alaterallyprokjecting .Contact tpin, .an yengaging serewthreaded nut -or the lattercarried by one oisaid spaced supports, a gap-closing screW- i' Vpintmounted in said nut andadjustalolefrom andtowardsaid end-support lateraleontact,

. and .an insulated.screW-pinoperating extension rodmounted parallel-,to saidcarrier .standard .and approggimately lcoeX-tensivein length -with the latter. Y

In testimony @vliereoafix my signature. GHARLE SgH. SPAN-GLER.

The specific structure shown` 

